Coffee maker



AOCLIQ, 1937; l w, B MOQE ET AL 2,096,127

COFFEE MAKER Filed April 22, 19:57

I N VEN TORS. WU/fer 5. Moore. Robe/f5 Cobb.

BY 5w/wav A TORNEYS.

Patented Oct. 19, 1937 UNITED STATES COFFEE MAKER Walter B. Moore and Robert S.

Ohio, assignors Lafayette,

Cobb, Welt to -The Moore Enameling & Manufacturing. Company, Welt Lafayette, Ohio, a corporation of Ohio Application April 22, v1937, Serial No. 138,383A

. 3 Claims.

Our invention relates to a colfee maker. It

has to do, more particularly, with\ a device adapted to be used for making coiee by thel French drip method.

There .have been many coffee makers of the general type indicated devised in the past. Most of these prior art coifee makers lhave been made of a number of parts whichare difdcult to keep clean. It has been found that those coifee makers which are provided with filter papermake the best coffee, it being free of all solid matter and, consequently, very clear. However, in the prior art devices using ilter papers, it has been necessary to provide means for clamping the lter paper in position. This complicates the structure of the coffee makers and makes them difil'- cult to use. Another disadvantage of such prior art coffee makers has resided in the fact that the grounds work beneath the'fllter paper and ultimately reach the container which receives the coiee beverage.

One of the objects of our invention is to provide a coifee maker for making coffee by the French drip method which is of a very simple structure, being composed of a small number of parts, and being so constructed that it isv easy to keep clean.

Another object of our invention is to provide a coffee making device of the type indicated which employs filter papers for insuring that the coffee will be clear and free from all solid matter.

-Another object of our invention is to provide a coffee maker of the type indicated wherein illter papers are adapted to be used but which is of such a nature that it will not be necessary to provide means for clamping the lter paper in the coifee making device.

Another object of -our invention is to provide a coifee making device of the type indicated which is of such a nature that even though the filter papers are not clampedin position, there will be no tendency for the coffee grounds to work under position thereby greatly simplifying the use of the edge of the paper.

The preferred embodiment of our invention is illustrated in the accompanying drawing wherein similar characters of reference designate corresponding parts and wherein:

Figure 1 is a vertical section taken through a coee making` device constructed in accordance with our invention.

Figure 2 is a section taken substantially along the line 2-2 of Figure 1.

Figure 3 is a section taken substantially along the line 3-3 of Figure 1.

Figure 4 is a detail in section showing a illter paper in position on the strainer member through which the coifee beverage is adapted to pass.

With reference to the drawing, and particularly to Figure 1, we have illustrated our coffee making device as comprising a main container I which is mainly of cylindrical form and which'is adapted to receive the coffee beverage. This container I is provided with a pouring spout 2 adJacent its upper end and with a handle 3 located diametrically opposite thereto. The container i is adapted to receive another container 4 within its upper end.

The container 4 is preferably of the shape illustrated. IIt comprises a lower depending portion 5 which is-mainly o f cylindrical form. It also comprises an upper portion 6 which is near cylindrical form but has its wall tapering inwardly slightly towards its upper edge. The portion 6 is of greater diameter than the portion 5 and the two portions are connected together by an integral section embodying inclined portions 'i and 8 and a vertically disposed portion 9. It will be apparent from Figure 1 that when the member 4 is inserted in the upper end of the container I, the portion 9 thereof will fit tightly against the inner surface of the container I. It preferably itssulciently tight so that there will be notendency for it to fall out of the container I when coffee is being poured from such container. The outer surface of the portion 5 is spaced from the wall of the container I in order to permit free passage of the coffee beverage through the spout 2.

The bottom of the portion 5 is formed by a dome-shaped member I0 which is provided with a' number oi perforations in the manner illustrated in Figure 3. 'I'his dome-shaped member projects upwardly within the portion 5 in which the chamber for receiving the coifee grounds is formed. The dome-shaped member I0 is connected to the lower edge of the portion 5 by means of an annular imperforate ange or shelf II. The structure of the dome and the imperforate shelf or ange II is illustrated clearly in Figure 4. It will be noted that the perforations in the member I0 extend downwardly only to a point indicated by the numeral I2 which is spaced slightly from the beginning of the horizontally disposed imperforate flange or shelf II. This dome-like structure and cooperating imperforate shelf or flange is an important feature of our invention.

The portionV 8V of the member 4 provides an inclined seat upon which the correspondingly inclined edge I3 of a Water spreader memberv I4 is adapted to seat. AsV illustrated in Figure 2 this member I4 is provided with a. number of small apertures. This member retards the flow of water into the portion 5 of the container and also. serves to spread the water so that it will reach all portions of the coffee grounds. Positioning oi the member I4 in the container 4 and Then it passes through the filter paper and.

nnauy out tiirough the apertures in the dome member Il and drops into the container' l lirom which it may be poured.

By having the dome-shaped portion Il and the imperforate annularhorizontally disposed shelf Il, any. tendency for the grounds to work under the-edge of the filter paper will be substantially eliminated. Furthermore, since the edge oi' the nlter paper is free and vdoes not contact with the 4wall of the portion 5,.it is possible to position the lterpaper on the strainer member Ill in suchamannerthat all wrinkles willbeeliminated therefrom.. It ,is important to have the nlter paper of such size that it will not extend over.

the imperforate flange or shelf Il in order to reduce the tendency for the grounds to work under the edge of the paper. When the paper terminates substantially at the point where the 'horizontal shelf begins, or slightly above such point, the grounds have a tendency to wxoik downwardly away from the edge oi' the paper.

The shelf is not perforated so that there will be a tendencyor the water to ow towards the center of the strainer member I and 'so that all of the water will not tend to flow towards the side of the portion i. It will be apparent that there will be a greater weight of coffee grounds l. towards the periphery of the portion 5 due to the dome-shape .of member Ill and the horizontal flange il and, consequently, the edge of the filter paper-will be held in position by the weight of the coifee grounds. The member I0 is preferably so constructed as to take standard size filter DBDBI'S.

'Olla or more illter papers may be employed. Iv'he`use ofmore than one lter paper will produce strongerpoifee since it will retard the ow of waterwthrough the coil'ee grounds, enabling the consumer to produce any strength of coil'ee desired. v

. foaming slums( Having our invention, what we 1. A contee making device fo'r mmng`"onee"2o by the drip method comprising a main communes` adapted to receive the conce' beverage, a receptacle adapted to fit within the uppenend of the main container and having -a portion projecting downwardly thereinto. a strainermember at the bottom of said receptacle upon which the coffee grounds are adapted to rest, said strainer memretarding member disposed. within thereceptacle at a point spaced above the strainer member,

and a lid for closing the upper end of saidv receptacle.

2. A coffee making device for making cotlee by the drip method comprising a main container adapted to receive the coifee beverage. a receptacle adapted to t within the upper end of the main container, a strainer member adjacent the bottom of said receptacle upon which the coffee grounds are adapted to rest, said strainer member comprising a centrally disposed portion of dome-like form which is perforated and an annular horizontally disposed imperiorate flange connecting the edge of the dome-like `portion to the wall of said receptacle, said dome-like portion being adapted to receive a filter paper on the upper surface thereof which preferably terminates substantially at the edge of the dome-like portion. and a water-spreading and now-retarding member mounted in the receptacle at a point spacedabove the strainer member.

3. A coffee making device comprising a receptacle adapted to receive the liquid which is adapted to pass through coee grounds disposed therein, a strainer member upon which the coil'ee grounds are adapted to rest, said strainer member comprising a -centrally disposed portion of dome-like form which is perforated and an annular horizontally disposed imperi'orate flange connecting the edge of the dome-like portion to the wall of said receptacle, and a lter paper disposed on the upper surface of the dome-like portion and terminating substantially at the edge thereof.

WALTER B. MOORE. ROBERT S. COBB. 

